Mercury 150 Pro XS OptiMax User Manual

eng i
Thank You
for your purchase of one of the finest outboards available.
You have made a sound investment in boating pleasure.
Your outboard has been manufactured by Mercury Marine, a
world leader in marine technology and outboard
manufacturing since 1939. These years of experience have
been committed to the goal of producing the finest quality
products. This led to Mercury Marine's reputation for strict
quality control, excellence, durability, lasting performance,
and being the best at providing after the sale support.
Please read this manual carefully before operating your
outboard. This manual has been prepared to assist you in
the operation, safe use, and care of your outboard.
All of us at Mercury Marine took pride in building your
outboard and wish you many years of happy and safe
boating.
Again, thank you for your confidence in Mercury Marine.
EPA Emissions Regulations
Outboards sold by Mercury Marine in the United States are
certified to the United States Environmental Protection
Agency as conforming to the requirements of the regulations
for the control of air pollution from new outboard motors.
This certification is contingent on certain adjustments being
set to factory standards. For this reason, the factory
procedure for servicing the product must be strictly followed
and, wherever practicable, returned to the original intent of
the design. Maintenance, replacement, or repair of the
emission control devices and systems may be
performed by any marine engine repair establishment or
individual.
Engines are labeled with an Emission Control Information
decal as permanent evidence of EPA certification.
!
WARNING
The engine exhaust from this product contains chemicals
known to the state of California to cause cancer, birth
defects or other reproductive harm.
© 2012 Mercury Marine 135/150/175/150-175 Pro XS OptiMax 90-8M0055670 311

Mercury 150 Pro XS OptiMax Specifications

General

Horsepower	150 HP
Starting	Electric
Displacement	2.5L
Fuel System	Direct Fuel Injection (DFI)
Shaft Length	20" / 25"
Alternator Output	60 Amp
Weight	445 lbs (202 kg)

Summary

Warranty Information

Warranty Registration

Details on how to register your product for warranty coverage with Mercury Marine.

Transfer of Warranty

Information on transferring limited warranty coverage to a subsequent purchaser.

Outboard Limited Warranty

Explains what Mercury Marine warrants for its new outboard products regarding defects.

3 Year Limited Warranty Against Corrosion

Covers the warranty against corrosion for Mercury engines for a period of three years.

Warranty Coverage and Exclusions

Clarifies what is covered and not covered by the warranty, including general exclusions.

U.S. EPA Emissions Limited Warranty

Outlines the five-year or 175-hour warranty for EPA emission control systems.

General Information

Boater's Responsibilities

Outlines the operator's duties for safe operation, including reading the manual.

Before Operating Your Outboard

Guide on essential checks and understanding of the outboard before initial operation.

Propeller Selection

Information on choosing the correct propeller for optimal performance and engine protection.

Protecting People in the Water

Safety advice on preventing injury to swimmers and people in the water.

Fuel and Oil

Fuel Recommendations

Oil Recommendation - 135/150/175 (Standard) Models

Oil Recommendation - 150–175 Pro XS Models

Filling Fuel Tank

Features and Controls

Remote Control Features

Warning System

Power Trim and Tilt

Operation

Pre-Starting Check List

Engine Break-In Procedure

Critical steps for breaking in the engine to ensure proper performance and longevity.

Starting the Engine

Gear Shifting

Maintenance

Inspection and Maintenance Schedule

Overview of periodic inspections and maintenance tasks required for the outboard.

After Each Use

Every 100 Hours of Use or Once Yearly

Flushing the Cooling System

Spark Plug Inspection and Replacement

Gearcase Lubrication

Storage

Storage Preparation

Protecting Internal Engine Components

Battery Storage

Troubleshooting

Starter Motor Will Not Crank the Engine

Identifies common causes and solutions when the starter motor fails to crank the engine.

Engine Will Not Start

Lists potential reasons and troubleshooting steps for an engine that fails to start.

Performance Loss

Owner Service Assistance

Local Repair Service

Service Assistance

Mercury Marine Service Offices

Outboard Installation

Important Information

Boat Horsepower Capacity

Guidance on matching the outboard's horsepower to the boat's capacity rating.

Lifting the Outboard

Determining Recommended Outboard Mounting Height

Fastening the Outboard to the Transom

Battery Cable Connections

Installing the Shift Cable

Propeller Installation

Detailed instructions and safety precautions for installing the outboard propeller.